Correlation width changed mean onset-label AUC by −0.012 beyond contact order in 16 SEEG test patients

We tested whether band-limited spectral correlation width adds onset-label information beyond contact order within electrode shafts. We rebuilt spectra from two first-minute public SEEG excerpts for each of 36 patients in OpenNeuro ds004100 v1.1.3. A fixed model used 15 training patients and 16 test patients. Adding width changed mean AUC from 0.8945 to 0.8822. The mean change was −0.0123, with a conditional 95% patient bootstrap interval of −0.0352 to 0.0046. The primary sign-flip p value was 0.375. Twelve test patients already had contact-order AUC 1.0. Width ranks were consistent between files, with median patient correlation 0.8464. Width alone gave mean AUC 0.5584. Adding width to a spectral-shape model changed mean AUC by 0.0005, with an interval that included zero. All eight fixed secondary tests are reported. This known cohort gives no external or clinical outcome validation. The 31 MB package preserves spectra, labels, source code, retrieval pins, results, figures, and reproduction instructions. Independent numerical checks passed. A repeat analysis reproduced all 52 result files.

intracranial EEG · SEEG · epilepsy · spectral correlation width · seizure onset zone · AUC · patient bootstrap